Commit d0ab4961 authored by Robert Ricci's avatar Robert Ricci

Added text about our restriction on one switch per node, and some

cabling suggestions, as per Jay's request.
parent a0e3ed89
......@@ -37,7 +37,10 @@ recommendations, and outlines the consequences of each choice.
sample first and try it out before committing to a card. Depedning on
usage, it may be OK to get a large number of nodes with 2 interfaces to
be edge nodes, and a smaller number with more interfaces to be
routers.</dd>
routers. <b>Note:</b> Our software currently does not support
nodes that are connected to multiple experimental-net switches.
For the time being, all NICs on a node must be attached to the same
switch.</dd>
<dt><b>Case/Chassis</b></dt>
<dd>This will depend on your space requirements. The cheapest option is
......@@ -188,7 +191,19 @@ recommendations, and outlines the consequences of each choice.
<dl>
<dt><b>Network cables</b></dt>
<dd>We use Cat5E, chosen becasue they are not much more expensive than
Cat5, and can be used in the future for gigabit ethernet.</dd>
Cat5, and can be used in the future for gigabit ethernet. It has been
our experience that 'boots' on cables do more harm than good. The
main problems are that they make it difficult to disconnect the cables
one connected, and that they get in the way on densely-connected
switches. Cables with 'molded strain releif' are better than cables
with boots, but are often much more extensive. We buy cables in
two-foot increments, which keeps slack low without making the order
too complicated. Our standard so far has been to make control net
cables red, experimental net cables yellow, serial cables white,
and cables for control hardware (such as power controllers) green.
We've bought all of our cables from
<a href="http://www.dataaccessories.com">dataaccessories.com</a>,
and have had excellent luck with them.</dd>
<dt><b>Serial cables</b></dt>
<dd>We use Cat5E, but with a special pin pattern on the ends to avoid
......
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